CVE-2023-38283

Public Exploit

Description

In OpenBGPD before 8.1, incorrect handling of BGP update data (length of path attributes) set by a potentially distant remote actor may cause the system to incorrectly reset a session. This is fixed in OpenBSD 7.3 errata 006.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory co.uk
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig patch
https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1 release notes
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling third party advisory exploit
https://news.ycombinator.com/item?id=37305800 mailing list
https://www.openbsd.org/errata73.html release notes

Frequently Asked Questions

What is the severity of CVE-2023-38283?
CVE-2023-38283 has been scored as a medium severity vulnerability.
How to fix CVE-2023-38283?
To fix CVE-2023-38283, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-38283 being actively exploited in the wild?
It is possible that CVE-2023-38283 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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